WN645 SEA → PHX

Southwest Airlines · Seattle, WA to Phoenix, AZ · 50 flights observed, 2026-04-07 to 2026-06-03 · 1,107 mi

This flight's reliability varies a lot by day of week — 78% on-time on Tuesdays vs. 25% on Mondays.

WN645 covers more than one route in the data window — the stats below are for SEA → PHX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
50%
Median delay
+16 min
90th percentile
+45 min
Cancellation rate
0%

How often is WN645 on time?

Across 50 flights on SEA → PHX from 2026-04-07 to 2026-06-03, WN645 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +45 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2550%
16-30 min1632%
31-60 min612%
61-120 min12%
2+ hrs24%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042143%+31 min
2026-052654%+13 min
2026-06367%+1 min

Performance by day of week

DayFlightsOn-time
Mon825%
Tue978%
Wed967%
Thu825%
Fri825%
Sat875%
SunNo data—

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…